'Commandment' in the Bible

My son, keep thy father's commandment, and forsake not the law of thy mother:

For the commandment is a lamp; and the law is light; and reproofs of instruction are the way of life:

When he gave to the sea his decree, that the waters should not pass his commandment: when he appointed the foundations of the earth:

Whoso despiseth the word shall be destroyed: but he that feareth the commandment shall be rewarded.

He that keepeth the commandment keepeth his own soul; but he that despiseth his ways shall die.